题解 | #公交车#
a/b
http://www.nowcoder.com/practice/1df03f0989a1494fa2acfcbd43496ffd
include
include
include
using namespace std;
int main()
{
    int a, b, inte, mod;
    cin >> a >> b;
    inte = a / b, mod = a % b;
    if(!mod) cout << inte << endl;
    else
    {
        string res = to_string(inte) + ".", deci;
        vector<int> myh(b, -1);
        int i = 0;
        while(mod && myh[mod] == -1)
        {
            myh[mod] = i++;
            inte = mod * 10 / b, mod = mod * 10 % b;
            deci.push_back(inte + '0');
        }
        if(mod)
            deci = deci.substr(0, myh[mod]) + "(" + deci.substr(myh[mod]) + ")";
        res += deci;
        cout << res << endl;
    }
    return 0;
}</int>
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 投递哔哩哔哩等公司10个岗位
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